{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "845727327",
    "entityType": "User",
    "nonce": "0x4ba97d4c48d37e4143dadea80680f653a624787b1caa605ef938d3264eb26223",
    "signature": "0x8027572bea8009dcc4060e571ca8ea79c0033404043136ca7bbbd878f6e2088b0485aee0036ae2b933cc1c8d07536e4148595a7c246882e93a1d1b1dc3c12d921c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}