{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755263",
    "entityType": "User",
    "nonce": "0x4c6e4e6be3e365889a596d67a4cbd98c9ecc1ce19528b7491f33ef35517aff4a",
    "signature": "0xd45efa0e6b414264865f282f33427d99d102021d8f7204c352198f86c39d73c511b1dc3f3adc0774e5cb94826f8f1fc544364e49a3903bbb9180565a54cafac61c",
    "signer": "0x689Be5c20E6Da52e11A70751E9FaCb05Abbc7805",
    "userId": "676830468"
  }
}