{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5acddd6b61ed013768ad3ff1f84acaab5c83a556e632df8387e5c8f60fb55770",
    "signature": "0x2f0c4652f9f4d92292bec4c76a4706e16e05599cb8bf2ec45541161d9c99eb8e434ca7a011fc6c984b4296791c0d81033ee44dd0b30964ab012cf0b04ed918ae1b",
    "signer": "0x7a5964d01a0E6003340532Fab87a5Cc95d891dCf",
    "userId": "653556831"
  }
}