{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0x84326aba1e67292561d55a42d63ef2200c5394bd292f757362a2b0482507d37d",
    "signature": "0x64c0d63ffc7a06210d696158e5645954babf4fdd727ed2e91b58be9b10f119a86221d35821871f14779b7703e9f4e1ba82ccadcbf1afed1219181673bf3663321c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}