{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951116729",
    "entityType": "User",
    "nonce": "0x2a3141ac50c77aede0effd115fea201399d2e8ec241d49d7ec288d617fcfb7d8",
    "signature": "0xe8b59ffdc82210ead94ad8dc5b5ee92ccfa05a1ffb77bd5554157ecb218214e43247b95704487133a86e4e5fb56def67f72673192fd69f35226338ea495a42991b",
    "signer": "0x5501467AFaA7897fBBD65dE583c7E74577B92f74",
    "userId": "608591950"
  }
}