{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "378116426",
    "entityType": "User",
    "nonce": "0xce6852dc4d4d62a0c6e671fa14a5e4e542369d3ddd05d463f11d72a9bbd0234f",
    "signature": "0x62755098cf147b19cdfe3f9e07766cbee0de371e3c71854e1e62aaf4181c79e377903ce5749771af51c66bca5855f7cf02f7ca0807c23c3dbc8449b403db0a8e1c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}