{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "98311147",
    "entityType": "User",
    "nonce": "0xf226205ef38cb50935fcae2211dd70eeb9a5fa31272dd4b4e9db8796149c4b56",
    "signature": "0xd20e0af2d995ba18f9ccdea54e9195da47e2594d200a4a8173261a85dc83f4457b989c843e482b82c8d375286bb57b0a05b30c074052e528b6390232640035a71b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}