{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "962626737",
    "entityType": "User",
    "nonce": "0x5d70bc9d76eac1c92db27cd105fb4f662d21075ea20facb5406a2b89f8d3a950",
    "signature": "0x8de072b4bba7cfc8817425d8d3c0b727a609d593f0ae4469bfd2c0979abe55c937c3306abbe9b77cf954285f3a84c943d69773cefb42662e25166ca93b20f0671b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}