{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141863",
    "entityType": "User",
    "nonce": "0xfa250ae5bfdf4103b9ace2e6b9afcd9cf6a302d7a1dc2c41ba3324e85be57f18",
    "signature": "0x848884f9c7b002c9c3cddba55ff566e44bac048c0024894a99dde30096f21caf65d5228291281d9616c99f76c713437610464e37241ebd82aca6195e1e49a7571b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}