{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x2187c3cefeeaf4a6a0435dfe6531081ab6ddd2794844327fa64532512230c21f",
    "signature": "0x2059f6b262d0b7e9ad47ae53415e19141fbe288b173432904276952af0d41893645bd1151aeeb0f7501bf58bb05323e9e894515eb03c99eec007914f4a7e35ce1b",
    "signer": "0xC75a276D0a36850045510B0483E737bCDd1F5E9b",
    "userId": "588125677"
  }
}