{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0xc160c49b0dd57d7e5d881901ec78946a1d62016007e68f65a53ca468dc5420d1",
    "signature": "0x294e7b0640feebbfe37a2feda8cf52278abca0ed6fb23386d8742026a7c80ecc26f6fe087c2e244d7cfc572409ebf5773ca52c4e3e055c8b74bd2be5df3d22bf1b",
    "signer": "0x7FCffbc9FB7516A6453F59c5b9918Ea8A7EB33eb",
    "userId": "502388335"
  }
}