{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1422295",
    "entityType": "User",
    "nonce": "0x62bfd47ae6f2ccd532d4db51197a52d60cd5cd392cb2c9c0d389be0dd4aeb7a9",
    "signature": "0xa8d853eec111becd23ca52e2f43a86a196096901c475b6605c28c03cdebdca8919d8ada1a83070ec67ad261e1ba50fbb1d52f67c934a6b911d22b77f688a5cb61c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}