{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3edef5d0cd158fe9e1bcc07820e6dbaf22aa8367edfd2f3ea9da3a0b7edff320",
    "signature": "0xb99f9b103784051285da9d48acbea99139b3dd6396fa4566ee62ae1085521fa7456c8fb829e89dd0e012f936e4c2414c48a0a5a1a7db9b0f4562f60775d2596e1c",
    "signer": "0xa67A15D7A8198D5424DCe970779969DfD80Db130",
    "userId": "299756172"
  }
}