{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843258957",
    "entityType": "User",
    "nonce": "0xb990d0250eefc276f14560ab9b7a7e8b401d17803edf5ac0967ae952c9cfd3d0",
    "signature": "0x626d6aabd3ff48cb41417a1536d5dcb16530da23fad423cce8ca88c60bfe76e809b17a9268e783cd22127de069be6857d2bb497348681de02a4d73e37478eaa11b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}