{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89625",
    "entityType": "User",
    "nonce": "0xc07b5cbe893133facc7ae2ad64b1066ad2a40b3d9547ae4d12f4571ebdcd6f80",
    "signature": "0xa03231806ee28516f3b4e4189af17bae436cb7b8a53bfec50786cfe788ed2d4e01a14b95bd567e8753024215894de65a527188b74e2a63ce12139dbb2079c00e1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}