{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfc102ce53e8e60e173da4a68145d1a17fb7cddda96c496296675979aadac45bb",
    "signature": "0xa869200e23e7139ee432babca719544420b97e05ba986b650d9cb89cf892ad1917ce5d1d0a57838a9e250e3f864e677bce1e1e8499dd00fa5ccf18cfbbfacce11b",
    "signer": "0xa99169c0C58d88F3530081334E058a394B7CA104",
    "userId": "960339313"
  }
}