{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "209777",
    "entityType": "User",
    "nonce": "0x5fbd443bbe7ab3453d29b419d1d22cda03ad90b351cb75ad6bf371d9e1ecb8d2",
    "signature": "0xc1d83e200543396afb3af30a7cf699beb8b1092d6ef1fe6fa8eef352ab5e99593202c5d49d5d7b87be6cb6db5f71bb9a94aba746ab4a8db6001bd66ab7521a901b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}