{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3817cd2b9e134fbd89696709bd62386b6007abcb51844e2edc6cb180f818a70a",
    "signature": "0x14d426cc278f71a5f1be9b3772975af2ef07099a2a30820471cf3131e640c3177aadc2367b1ec91c1c8bafdaf34a633fc92fc2f5548d3176893c71b2dd6cd5fa1c",
    "signer": "0x883fa730a7cbE72C38fF2f171ef282394B714D19",
    "userId": "27346972"
  }
}