{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "957488166",
    "entityType": "User",
    "nonce": "0xc8ea87ac6c2620ab37686a32959920247a11a5fba5fed8358bb81c0efaf171b8",
    "signature": "0x6b9b85a2f65001a4420160bd47fa08fcf752d6c486cf341653677ff1f27153521b0738609b2d6a7623ba4e52fe031f6ff19aa4a75d112afea8e5fc7c1a4649e21b",
    "signer": "0x9b6bD4505e2bCfA88acc8680F463a96DAddf1d0d",
    "userId": "213208842"
  }
}