{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0x0ea9bb3a40b02a638143d416c576db280373461290ac033e554781e3b370bcbc",
    "signature": "0x78c9b3b3d4f37dc2518916e68c77b728106891d886264b73fcbb2da11d205d2d7049a1ec0dfa5bca5bf11d8194569ca84ecfc7844470a578fda20c82fb4b21581b",
    "signer": "0xC904b74a04E95F05A4CEC153C71EF75FdFFcD5CF",
    "userId": "962203192"
  }
}