{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234183",
    "entityType": "User",
    "nonce": "0xbde7b4e126d1f60c41a7770a26f24f767f04701f093d3efa6b7b60a9b280a975",
    "signature": "0x63184f74580aa2f1b94d02cdc78b676188c9415d5196df2a5d46f2de54bf945376d0ce6b0976547038ad88a408300cedfabfaf74e7f55e4b19a7dae5fd8daecf1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}