{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20859",
    "entityType": "User",
    "nonce": "0x0dc281d4cbcb9c6a1da9bced6477231bd505d512d5b05520f8dd0dc4783d673c",
    "signature": "0x991204581780c08883b45ebe0b63c1b3e81d8e4360e697d95b88e935ba7e5db11020f75a703e51755d9d7196dc54c014d2a2e6d0b7024a997bee39a84d092bcf1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}