{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "288548772",
    "entityType": "User",
    "nonce": "0x626b3d28d869284d56b7b8c95d87d2ad52b53fe2917f7e5835201ae9ae6556f9",
    "signature": "0xbefb0cd16edb65245d22ed10285189fe88751242d4e1164187174b14c1d12dc63c32460685f8aea196fd32639a250eb70db684f9648e2cae1b13c6505ec25a321b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}