{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "480962013",
    "entityType": "User",
    "nonce": "0x575f4e3ec0d3015ed5a29b1c924d69645375cfff01b8263675eb17ded17e433f",
    "signature": "0x07f585694c30866242b080c6a3db0bdbcd28edf16d4b3ae1363666863537ae78657082e0f51a55f1c5c8ba23d8fc3ce0a6e9d0f0f98bea4799aeb47d632777821c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}