{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326897",
    "entityType": "User",
    "nonce": "0xc3a66d781149daf279dbb16a2520756be5177f0ad2e075ec0ee66e34a13bd2df",
    "signature": "0x0d8f60c7e89ab51d6155704622da73b11790e3ac8c2eaaac0ab0dca66dd2257e418874859acde84d0387c18ee0910b601ce190b5892a5819f742ebf5402f19871c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}