{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1885039",
    "entityType": "User",
    "nonce": "0xc5610a7c4e0679c8fe22577a0b78332fe0e5ade37fe280f7628fe2de34da8204",
    "signature": "0xd43575efa9ced97fa4b5b155a2190caf472ffd0733bbd89396077c98956219bb0fc8ffb35f24b2782f6ff6b9f0f25b8b70345c4b598e2cf0bccfd7ad8d2274191b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}