{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "536962",
    "entityType": "User",
    "nonce": "0x948443e2d4dc43f9be7ac73f7334feef91c4c9e0da6cbdfcf93197c7aca4013e",
    "signature": "0xbc6ccaf875ec00f5462e5165cee3f8c5413d72dcb1b9b2e2f096aaa2abdf579438e12d69b676d16e71e351cafbc862ece4eb064e52ab005732349cc7c34bf38b1b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}