{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2912",
    "entityType": "User",
    "nonce": "0xf22564a679cd8c097d186fc773962f5946c15e7001fa1674ede0c568a316963b",
    "signature": "0x345f9114f2b53a45967f9559390bc566e86671395672e3e523e8b2e958e90c86140712ed006af4db37802f3c2b504394086ad7b10d406994b778c5c6ea394da71b",
    "signer": "0x12705C8Fe8CE886CeFEFa0d4d46E906f2c35C954",
    "userId": "477934274"
  }
}