{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0xf1fa3554a1370000ab985d086a850bbaf408cac8a29935e2e006addcb109a2b9",
    "signature": "0x1851c5b7494b617dbbc9e81671546a277c98713504ed10dac4fd11f9fdffd3a2262eafcbf4cb2a636a41a02577572a65552639745f402161a7ebf14e2c439d881b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}