{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x84602199c7755d63e719283f407dc1e01b88f98e3d2830dbf51e63af558a281d",
    "signature": "0xe905db6c40678586cd9d1ea76ef483ff2db4671fd942db2865d3af57987fca794b4b808f33c0be46e4c498d9322bce10c9afd3da0162452c6b618032fd2062f61c",
    "signer": "0x7A993f60b9e3ed40259266E97d930d6E71180c05",
    "userId": "79295734"
  }
}