{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190610",
    "entityType": "User",
    "nonce": "0x9988aedd70ca95fbe7a180ec5e61edd8e0022e5392fe3883a5a93150046890c9",
    "signature": "0xdd125e6b0128f1954a4374c009daace0f7971d2b311d80d71966cb8e507cf3f001da536a471f644e107e7e1538b604f6465de8a2dd86a2873d054afbe9d30bef1c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}