{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1363771",
    "entityType": "User",
    "nonce": "0x7dfc8c1092d4b3350351f22544b22e2dbbee6edfc3c12f0c8c17a7187eebbe88",
    "signature": "0x1f98c7f663a0ccb6795633cade9a002cb500dee09705a9b9080203fff427ffe8153637bfd549a815fee2d50a86f59474438b5c19e6b16ea2677115f5dc64b37c1c",
    "signer": "0xC9e4fe89311517E71e968f6DE26A6c075A639F41",
    "userId": "964899801"
  }
}