{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0872e9765589069fe23437bbdae0bcdf836b85a0b70728004eae922ec623eb4b",
    "signature": "0x105cfae482bcb898b0af2ad4458ca5ebd7beac52ab56d1846b67659ec624213c7e1f86a017d6967d9db49c5093fb5759b717086e22c58dfcc627ec7b9b0a1a171b",
    "signer": "0xF25643A5E2Cd0B30a211228120b26e63d80c81Cc",
    "userId": "849457242"
  }
}