{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152964",
    "entityType": "User",
    "nonce": "0xd42747ccb7dc877ef443c586457776736f14361c4816933e1c5bf234314a53ed",
    "signature": "0xbefb54f2ee041c39cd024e281165fb9e934ff4a9bb4622b6b4a407f83d70e5e80879d59869e356290ab68a324f6fadfac9dfcff6709d59d7da2ec7509a3058ab1c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}