{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108968",
    "entityType": "User",
    "nonce": "0x94a0912e8cc5cbb2ac84b821db127a7b4627f289fbc8d56b725b22d0b4f72708",
    "signature": "0xac9bd2dfca145534896d3bda5a8ef7c6f454f386d94a69cde0cb3925860de6287e6b57d74cffec09f72d4b61f6f203bf5f56ec457c8f628cb52402d38aa3d7311c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}