{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215386",
    "entityType": "User",
    "nonce": "0x1c8c44444acf3e2a10da6cd2e22e5761b3296d6e9720f3ae42026a8ee1d6be95",
    "signature": "0x111584d13b04049964ebf2da85a8fb55bc160da64083277caf3494ae8b21f393120348f6b0008afff1c7df8586536b57cc5335d096bf064f152a055bcf66c61f1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}