{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "485987672",
    "entityType": "User",
    "nonce": "0x534bfa6cc883348c707f1b1a1239afb5453145669a6a5823e98bfc71c7a7c09f",
    "signature": "0x072b724c81ddf679d9970f3908fd8bf00c12cb1adaabcff59d41e916940204a61036fc807f68078161dfb25ba03ea93847deb26bb5441d2048196d4a3be57a961c",
    "signer": "0x164E8a2C2a8C30231940C356293c7038E5DE7ABC",
    "userId": "354993"
  }
}