{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148348",
    "entityType": "User",
    "nonce": "0x992630d345363fd184e23168917f6053ad1a7b8462347bd29ee27ca8990ab9ff",
    "signature": "0x1be610109ba8edf349edaf277c216ba95ca3dfac41db27d66e53f25f1e794ce33d7f40014db520aed15e5249c28f2451e61712c5992bfef0388d053b938163531c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}