{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1475185",
    "entityType": "User",
    "nonce": "0x48a0e15db2c22d5def93bf6e612e52c4b277b946549381d944664f31b0d9e1e8",
    "signature": "0x68a0dba62c1411fa8f2736b5a97aa5b582b7adf345fda15b98815b3280f0646504e6ee8827ffa489fc8de5ef8804e62ed2e7dfd8006994f993c8f240a7a5c74b1c",
    "signer": "0x7Fca0754B90893F156B055e62d9ae45AE2dF4686",
    "userId": "308196323"
  }
}