{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1880719",
    "entityType": "User",
    "nonce": "0x916f0ecb1c1525d9646e5c6e7c2c4c49253dd05c2a1ef79955066c30fe2f909e",
    "signature": "0x0dde92171fa921276a156a22bd1a658c13c8225b4810933d5909e05ab34f9f5919b56a644617d426139770252c681cad74f46d0a89df53b0eb6c81bd87a7190f1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}